(CkPython) Workaround for the deprecated Crypt2.MacBytes method

Shows how to replace the deprecated MacBytes method. (Chilkat is moving away from the use of CkByteData.)

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat Python Downloads install with pip pip3 install chilkat or download... Python Module for Windows, MacOS, Linux, Alpine Linux

import chilkat

crypt = chilkat.CkCrypt2()

# Do HMAC using SHA-256.
crypt.put_MacAlgorithm("hmac")
crypt.put_HashAlgorithm("sha256")

keyHex = "000102030405060708090A0B0C0D0E0F"
success = crypt.SetMacKeyEncoded(keyHex,"hex")

path = "c:/someDir/example.dat"

# ------------------------------------------------------------------------
# The MacBytes method is deprecated:

inData = chilkat.CkByteData()
inData.loadFile(path)

outData = chilkat.CkByteData()

success = crypt.MacBytes(inData,outData)

# ------------------------------------------------------------------------
# Workaround.
# (Chilkat is moving away from using CkByteData)

bdIn = chilkat.CkBinData()
bdIn.LoadFile(path)

# Set to any supported Chilkat encoding: base64, hex, base64url, hex_lower, etc.
crypt.put_EncodingMode("base64")
mac_base64 = crypt.macBdENC(bdIn)